This is an activity for proofs that prove triangles are congruent by SSS, SAS, AAS, and ASA. It also includes proofs that use "Corresponding Parts of Congruent Triangles are Congruent" (CPCTC). You can print this activity, which includes 8 proofs, and cut out the statements and reasons. I put each picture at stations in my room along with the cut out statements and reasons, and the kids used the pieces to create the proof. You could also put a magnet on the cut-out pieces and students could arrange the proof on a magnetic board.